CN108006996B - Solar photo-thermal energy storage heating straw comprehensive utilization method and system - Google Patents
Solar photo-thermal energy storage heating straw comprehensive utilization method and system Download PDFInfo
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- CN108006996B CN108006996B CN201711168935.0A CN201711168935A CN108006996B CN 108006996 B CN108006996 B CN 108006996B CN 201711168935 A CN201711168935 A CN 201711168935A CN 108006996 B CN108006996 B CN 108006996B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
Abstract
The invention belongs to the technical field of solar energy utilization, and provides a comprehensive utilization method of solar photo-thermal energy storage heating straw, which comprises the following steps: s1: determining heat source consumption for heating in a heating season and processing straws in a non-heating season, wherein the heat source is trough electric heating and solar photo-thermal in an illumination area, and the energy storage mode is that an energy storage tank stores energy; s2: in the heating season, the predicted thickness M of the cloud layer of the second day in the illumination area is predicted according to the satellite cloud picture data in the first day, and the predicted collection quantity U of the solar photo-thermal heat source of the dependent variable in the second day and the predicted consumption quantity Q1 of the heat source of the second day in the heating season of the dependent variable are obtained by taking the predicted thickness M of the cloud layer of the second day in the illumination area as an independent variable; setting a constant heat source consumption Q2 in the second day of the non-heating season; s3: and determining the energy storage C stored in the energy storage tank at the trough electricity of the first day, wherein in the heating season, C is k (Q1-U), and in the non-heating season, C is k (Q2-U). The invention solves the technical problem that the solar photo-thermal and trough electricity utilization is only simple and can not be utilized accurately in the technology.
Description
Technical Field
The invention belongs to the technical field of solar energy utilization, and relates to a solar photo-thermal energy storage heating straw utilization comprehensive method and system.
Background
Under the large environment of promoting clean energy globally, the photothermal power generation is the new energy which can replace thermal power to become basic power load under the most condition, and the groove type photothermal power generation technology is the most stable and mature technology in the four technologies of photothermal power generation. The most important characteristic that photothermal is different from photovoltaic is the energy storage technology, which can store heat energy and control the output power generation time of heat, and the solar photothermal and trough electricity utilization in the prior art are simple storage and cannot be accurately stored and utilized.
Disclosure of Invention
The invention provides a solar photo-thermal energy storage heating straw comprehensive utilization method and system, which solve the problems in the prior art.
The technical scheme of the invention is realized as follows:
the comprehensive utilization method of the solar photo-thermal energy storage heating straw comprises the following steps:
s1: determining heat source consumption as heating seasons to heat a heating area and straw processing in a production area in non-heating seasons, wherein the heat source is trough electric heating and solar photo-thermal energy in an illumination area, and the energy storage mode is energy storage by an energy storage tank;
s2: in the heating season, the predicted thickness M of the cloud layer of the second day in the illumination area is predicted according to the satellite cloud picture data in the first day, and the predicted collection quantity U of the solar photo-thermal heat source of the dependent variable in the second day and the predicted consumption quantity Q1 of the heat source of the second day in the heating season of the dependent variable are obtained by taking the predicted thickness M of the cloud layer of the second day in the illumination area as an independent variable;
in the non-heating season, forecasting a second-day cloud layer forecasting thickness M of an illumination area on the first day by satellite cloud picture data, calculating a second-day forecasting collection quantity U of a dependent variable solar photo-thermal heat source by taking the second-day cloud layer forecasting thickness M of the illumination area as an independent variable, and simultaneously setting constant second-day heat source consumption Q2 in the non-heating season;
s3: determining the energy storage C of the first day when the trough electricity is stored in the energy storage tank, wherein in the heating season, C is k (Q1-U), and in the non-heating season, C is k (Q2-U), and k is an energy storage coefficient;
s4: and repeating the steps S2 and S3 to calculate the stored energy C stored in the energy storage tank every sky wave valley electricity.
As a further technical scheme, in step S2, the predicted consumption Q1 of the second day of the heating season and the predicted collection U of the solar photo-thermal heat source in the second day are calculated, and the predicted temperature T of the second day in the independent variable illumination area is increased except for the thickness M of the cloud layer in the second day.
In a further aspect, in S3, k is 1.1 to 1.2.
As a further technical solution, in the heating season, the second day heat source predicted consumption Q1 is k11Q11+ k12Q12, where Q11 is the second day heat source day predicted consumption, Q12 is the second day heat source night predicted consumption, and k11 and k12 are corresponding weights.
In step S2, the predicted collection amount U of the solar photothermal heat source on the second day and the predicted consumption amount Q1 of the heat source on the second day in the heating season are calculated from 23 to 24 days in the first day.
As a further technical scheme, the energy storage tank is a lava energy storage tank with the crystallization temperature of 110 ℃ and the melting temperature of 500 ℃.
As a further technical scheme, in S1, the straw processing in the production area in the non-heating season is specifically a full-automatic zero-formaldehyde wood-substitute production line of wheat straw, and the wheat straw is produced into a clean industrial product.
As a further technical scheme, heat exchange is carried out through heat conduction oil in heating season for heating the heating area and in non-heating season for processing the straws in the production area.
The invention also provides a solar photo-thermal energy storage heating straw comprehensive utilization system which comprises a solar heat collection device and a trough electric heat device which are both connected with an energy storage tank, wherein the energy storage tank is connected with an energy storage control cabinet, the energy storage control cabinet is connected with the solar heat collection device and the trough electric heat device, the energy storage tank is connected with a heating device and a straw processing device through a heat-conducting oil heat exchange device, and the heat-conducting oil heat exchange device is connected with a heat-conducting oil heat distribution control cabinet.
As a further technical scheme, the solar heat collecting device is a solar sun-tracking heat collecting device.
The invention has the following using principle and beneficial effects:
in the invention, solar photo-thermal energy is utilized, trough electricity is utilized, the energy storage tank stores energy, heating areas in heating seasons are heated, and straw processing is carried out in production areas in non-heating seasons, the comprehensive performance of the whole system is strong, the energy storage effect is good by utilizing the energy storage tank, the heat source is trough electricity, heat and solar photo-thermal energy can be realized, the trough electricity, the heat and the solar photo-thermal energy are stably stored on one hand, the energy cost is greatly reduced on the other hand, the energy source is very stable and efficient, solar photo-thermal energy can be collected by a solar trough type heat collection device through a sun tracking control system, the energy storage tank stores heat, meanwhile, the energy storage tank has an electric auxiliary heating function, trough electricity with very low cost is well utilized, trough electricity and heat heating quantity can be automatically controlled through large data heat calculation, so that the system can uninterruptedly release heat, therefore, the requirement of industrial heat in winter heating and non-heating seasons is met, meanwhile, the industrial heat creatively selects straw production as the tail end of the system, a wheat straw full-automatic production zero-formaldehyde wood-substitute production line is configured, the wheat straw can be produced into a clean industrial product which is exactly matched with the heating seasons, the heating seasons do not produce any more, the problem that the heating season and the straw production are thick and thin is solved perfectly, the problem that the system in the system heating season heats and the system in the non-heating seasons stagnates is solved perfectly, the industrial problem is solved, the unexpected effect that the heating and the straw production are exactly covered four seasons and twelve months all the year round is achieved, the effect can not be achieved by all industrial production, the production in winter can be achieved by other industrial production, the requirement for heating in winter can not be met, or the problem that the non-heating seasons can not be covered by other industrial production can be achieved, so that the energy storage tank has the problem of wasting huge energy by stopping intermittently.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic block diagram of the present invention;
in the figure: 1-an energy storage tank, 2-a solar heat collection device, 3-a trough electric heating device, 4-an energy storage control cabinet, 5-a heat conduction oil heat exchange device, 6-a heating device, 7-a straw processing device and 8-a heat conduction oil heat distribution control cabinet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in FIG. 1, the comprehensive utilization method of solar photo-thermal energy storage heating straw provided by the invention comprises the following steps:
s1: determining heat source consumption as heating seasons to heat a heating area and straw processing in a production area in non-heating seasons, wherein the heat source is trough electric heating and solar photo-thermal energy in an illumination area, and the energy storage mode is that the energy storage tank 1 stores energy;
s2: in the heating season, the predicted thickness M of the cloud layer of the second day in the illumination area is predicted according to the satellite cloud picture data in the first day, and the predicted collection quantity U of the solar photo-thermal heat source of the dependent variable in the second day and the predicted consumption quantity Q1 of the heat source of the second day in the heating season of the dependent variable are obtained by taking the predicted thickness M of the cloud layer of the second day in the illumination area as an independent variable;
in the non-heating season, forecasting a second-day cloud layer forecasting thickness M of an illumination area on the first day by satellite cloud picture data, calculating a second-day forecasting collection quantity U of a dependent variable solar photo-thermal heat source by taking the second-day cloud layer forecasting thickness M of the illumination area as an independent variable, and simultaneously setting constant second-day heat source consumption Q2 in the non-heating season;
s3: determining the stored energy C stored in the energy storage tank 1 in the trough electricity of the first day, wherein in the heating season, C is kQ1-U, in the non-heating season, C is kQ2-U, and k is an energy storage coefficient;
s4: s2, S3 are repeated to thereby realize the calculation of the stored energy C stored in the energy storage tank 1 every one day of the valley electricity.
In the invention, solar energy photo-thermal utilization, trough electricity utilization, energy storage of the energy storage tank 1, combined utilization of heating areas in heating seasons and straw processing in non-heating season production areas are carried out, the overall system has strong comprehensiveness, the energy storage effect is good by utilizing the energy storage tank 1, the heat source is trough electricity, heat and solar energy photo-thermal stable energy storage is realized, the trough electricity and the solar energy photo-thermal stable energy storage are realized on one hand, the energy cost is greatly reduced on the other hand, the energy source is very stable and efficient, solar energy photo-thermal can be selected from solar trough heat collection equipment to collect heat by using a solar control system, the energy storage tank 1 stores the heat, meanwhile, the energy storage tank 1 has an electricity-assisted heating function, trough electricity with very low cost is well utilized, and trough electricity heating can be automatically controlled by large data heat calculation, the system can continuously release heat according to the needs, thereby meeting the needs of industrial heat in winter heating and non-heating seasons, simultaneously, the industrial heat creatively selects straw production as the system end, a wheat straw full-automatic production zero-formaldehyde wood-replacing production line is configured, the wheat straw can be produced into a clean industrial product which is exactly matched with the heating season, the heating season is just not produced, the problem that the heating season and the straw production are thick and thin is not generated, the problems of heating in the system heating season and system stagnation in the non-heating season are perfectly solved, thereby not only solving the industrial problems, but also obtaining the unexpected effect that the heating and the straw production are just exhausted all the year round and twelve months, because not all industrial production can realize the effect, and other industrial production can generate the need of production in winter, but can not meet the needs of heating in winter, or other industrial production can cause the problem that the energy storage tank 1 can not be fully discharged in non-heating seasons, so that huge energy is wasted due to intermittent stop.
Further, in S2, the predicted consumption Q1 of the second day of heating and the predicted collection U of the solar photo-thermal heat source in the second day are calculated, and the predicted temperature T of the second day in the independent variable illumination area is increased in addition to the second day cloud layer thickness M.
In the invention, the electric heat of the wave trough is stored in the energy storage tank 1 not randomly, but accurately stored according to big data, the predicted thickness M of the cloud layer of the second day in an illumination area is predicted by satellite cloud picture data in the first day in a heating season, the predicted collection quantity U of the cloud layer of the second day in the illumination area and the predicted consumption quantity Q1 of the heat source of the second day in a dependent variable heating season are obtained by calculating the thickness M of the cloud layer of the second day in the illumination area as independent variables, the predicted collection quantity U of the cloud layer of the second day in the illumination area and the predicted temperature T of the second day in the illumination area are calculated as independent variables in the first day in a non-heating season, the number of the dependent variables is calculated according to the two variables, the calculation mode can be easily realized according to actual selection, and the Q2 of the second day in the non-heating season is set at the same time, therefore, the energy storage C of the energy storage tank is stored in the first day trough electricity, and during the heating season, the C is k (Q1-U), and during the non-heating season, the C is k (Q2-U), so that the energy storage C of the energy storage tank is stored in the first day trough electricity, accurate calculation is achieved, the problems that the trough electricity is stored too much and the trough electricity is stored too little are avoided, and the excellent effects of continuous and stable heating and industrial production are well achieved.
Further, in S3, k is 1.1 to 1.2.
In the heating season, the predicted consumption Q1 of the heat source in the second day of the heating season is k11Q11+ k12Q12, where Q11 is the predicted consumption of the heat source in the second day in the daytime, Q12 is the predicted consumption of the heat source in the second day in the nighttime, and k11 and k12 are corresponding weights.
Further, in S2, the predicted collection amount U of the solar photo-thermal heat source on the second day and the predicted consumption amount Q1 of the heat source on the second day in the heating season are calculated from 23 to 24 hours on the first day.
Further, the energy storage tank 1 is a lava energy storage tank 1 with a crystallization temperature of 110 ℃ and a melting temperature of 500 ℃.
Further, in S1, the straw processing in the production area in the non-heating season is specifically a full-automatic zero-formaldehyde wood substitute production line of wheat straw, and the wheat straw is produced into a clean industrial product.
Further, heating areas are heated in heating seasons, and straw processing is carried out in production areas in non-heating seasons, and heat exchange is carried out through heat conduction oil.
In the S3, k is 1.1-1.2, the electric heat stored in the trough is stored with a certain margin, which is 10-20% higher, so that the sufficient supply of energy is ensured, the less consumption of energy is ensured, the predicted consumption Q1 of the second-day heat source in the heating season is divided into the predicted consumption Q11 of the second-day heat source in the daytime and the predicted consumption Q12 of the second-day heat source in the nighttime for respective calculation, and the optimal proportion is set according to a proportion test, so that the accurate prediction of the energy consumption in the second day is further improved, meanwhile, the energy storage tank 1 has a better energy storage effect and better energy efficiency, and is perfectly matched with the whole system working all year round, and the wheat straws produced by industrially processing are clean products, so that the whole system is very environment-friendly and energy-saving.
The invention also provides a solar photo-thermal energy storage heating straw comprehensive utilization system, which comprises
The energy storage device comprises a solar heat collection device 2 and a trough electric heating device 3 which are connected with an energy storage tank 1, wherein the energy storage tank 1 is connected with an energy storage control cabinet 4, the energy storage control cabinet 4 is connected with the solar heat collection device 2 and the trough electric heating device 3, the energy storage tank 1 is connected with a heating device 6 and a straw processing device 7 through a heat conduction oil heat exchange device 5, and the heat conduction oil heat exchange device 5 is connected with a heat conduction oil heat distribution control cabinet 8.
Further, the solar heat collection device 2 is a solar sun-tracking heat collection device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The comprehensive utilization method of the solar photo-thermal energy storage heating straw is characterized by comprising the following steps of:
s1: determining heat source consumption as heating seasons to heat a heating area and straw processing in a production area in non-heating seasons, wherein the heat source is trough electric heating and solar photo-thermal energy in an illumination area, and the energy storage mode is that the energy storage tank (1) stores energy;
s2: in the heating season, the predicted thickness M of the cloud layer of the second day in the illumination area is predicted according to the satellite cloud picture data in the first day, and the predicted collection quantity U of the solar photo-thermal heat source of the dependent variable in the second day and the predicted consumption quantity Q1 of the heat source of the second day in the heating season of the dependent variable are obtained by taking the predicted thickness M of the cloud layer of the second day in the illumination area as an independent variable;
in the non-heating season, forecasting a second-day cloud layer forecasting thickness M of an illumination area on the first day by satellite cloud picture data, calculating a second-day forecasting collection quantity U of a dependent variable solar photo-thermal heat source by taking the second-day cloud layer forecasting thickness M of the illumination area as an independent variable, and simultaneously setting constant second-day heat source consumption Q2 in the non-heating season;
s3: determining the stored energy C of the first day with the wave trough electrically stored in the energy storage tank (1), wherein in the heating season, C = k (Q1-U), and in the non-heating season, C = k (Q2-U), and k is the energy storage coefficient;
s4: repeating S2 and S3 to realize the calculation of the stored energy C stored in the energy storage tank (1) by the valley electricity of each day;
in the heating season, the predicted consumption of the heat source in the second day of the heating season Q1= k11Q11+ k12Q12, wherein Q11 is the predicted consumption of the heat source in the second day in the daytime, Q12 is the predicted consumption of the heat source in the second day in the nighttime, and k11 and k12 are corresponding weights; in S2, the predicted collection amount U of the solar photo-thermal heat source in the next day and the predicted consumption amount Q1 of the heat source in the next day of the heating season are calculated in 23-24 days of the first day.
2. The solar photo-thermal energy storage heating straw comprehensive utilization method according to claim 1, wherein in S2, the predicted consumption Q1 of the solar photo-thermal energy source in the second day of the heating season and the predicted collection U of the solar photo-thermal energy source in the second day are calculated, and the predicted temperature T of the independent variable illumination area in the second day is increased except the thickness M of the cloud layer in the second day.
3. The comprehensive utilization method of solar photo-thermal energy storage heating straws as claimed in claim 1, wherein in S3, k = 1.1-1.2.
4. The solar photo-thermal energy storage and heating straw comprehensive utilization method according to claim 1, wherein the energy storage tank (1) is a lava energy storage tank (1) with a crystallization temperature of 110 ℃ and a melting temperature of 500 ℃.
5. The solar photo-thermal energy storage heating straw comprehensive utilization method according to claim 1, characterized in that in S1, straw processing in a non-heating season production area is specifically a wheat straw full-automatic zero-formaldehyde wood substitute production line, and wheat straw is produced into a clean industrial product.
6. The solar photo-thermal energy storage heating straw comprehensive utilization method according to claim 1, characterized in that heat exchange is carried out through heat conduction oil in heating seasons for heating areas and in non-heating seasons for straw processing in production areas.
7. The system for realizing the solar photo-thermal energy storage and heating comprehensive utilization method of the straws as claimed in any one of claims 1 to 6 is characterized by comprising a solar heat collection device (2) and a trough electric heating device (3) which are both connected with an energy storage tank (1), wherein the energy storage tank (1) is connected with an energy storage control cabinet (4), the energy storage control cabinet (4) is connected with the solar heat collection device (2) and the trough electric heating device (3), the energy storage tank (1) is connected with a heating device (6) and a straw processing device (7) through a heat-conducting oil heat exchange device (5), and the heat-conducting oil heat exchange device (5) is connected with a heat-conducting oil heat distribution control cabinet (8).
8. System according to claim 7, characterized in that said solar collector means (2) are solar sun tracking collector means.
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